Download se-135 manual ground-fault ground-check monitor

3714 Kinnear Place
Saskatoon, SK
Canada
S7P 0A6
Ph: (306) 373-5505
Fx: (306) 374-2245 www.littelfuse.com/relayscontrols
SE-135 MANUAL
GROUND-FAULT GROUND-CHECK MONITOR
REVISION 3-C-100314
LITTELFUSE STARTCO
GROUND-FAULT
GROUND-CHECK MONITOR
GROUND
FAULT
TRIP
DIAGNOSTIC
ERROR
SE-135
GROUND
CHECK
TRIP
TRIP
SENSOR
POWER
VALID
VALID
OPEN
8
6 2.0
1.5
4 1.0
3
.75
.50
2
10
2.5
CS10
CS40
OPEN
12
3.0 20
5.0
7.5 30
SHORT
10.0
40
12.5
50
GF TRIP LEVEL (A)
.50 .70 1.0
.40
.30
.20
.10
1.3
1.6
2.0
2.5
GF TRIP TIME (s)
RESET
GC TEST
FUSE F1: 1.5 A 500 VAC TIME DELAY
Copyright  2014 by Littelfuse Startco.
All rights reserved.
Document Number: PM-1315-EN
Printed in Canada.
SE-135 Ground-Fault Ground-Check Monitor
This page intentionally left blank
Page i
Rev. 3-C-100314
Page ii
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
TABLE OF CONTENTS
SECTION
1
2
LIST OF FIGURES
PAGE
General ................................................................. 1
Operation ............................................................. 1
2.1 Ground-Fault Circuit ............................................. 1
2.1.1 GF Trip Time Setting................................. 1
2.1.2 GF Trip Level Setting ................................ 1
2.2 Ground-Check Circuit ........................................... 1
2.3 Reset ................................................................... 2
2.4 Trip Relay ............................................................. 2
2.5 Network Communications .................................... 2
3
Indication ............................................................. 3
3.1 Ground Fault ......................................................... 3
3.2 Power .................................................................... 3
3.3 Diagnostic Error .................................................... 3
3.4 Ground Check ....................................................... 3
4
Installation ........................................................... 3
4.1 General .................................................................. 3
4.2 Monitor ................................................................. 3
4.3 Current Sensors ..................................................... 3
4.4 Termination Assembly .......................................... 3
4.5 Remote Operation ................................................. 3
4.6 Parallel-Path Isolation ........................................... 4
4.7 Ferrite Placement .................................................. 4
5
Technical Specifications ................................... 15
5.1 SE-135 ................................................................ 15
5.2 Current Sensors ................................................... 16
5.3 Termination Assemblies ..................................... 17
6
Ordering Information ....................................... 18
7
Warranty ........................................................... 18
8
Test Procedures ................................................. 19
8.1 Ground-Check Trip Tests ................................... 19
8.1.1 Latching Ground-Check Trip Test........... 19
8.1.2 Non-Latching Ground-Check Trip Test .. 19
8.2 Trip Relay Fail-Safe Mode Test.......................... 19
8.3 Current-Sensor-Verification Test ........................ 19
8.4 SE-TA12A-Series Termination Assembly
Tests .................................................................... 19
8.5 Ground-Fault Performance Test.......................... 20
Appendix A SE-135 Revision History......................... 22
FIGURE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
PAGE
SE-135 Typical Application ..................................4
SE-135 Outline and Panel-Mounting Details ........5
SE-134-SMA Surface Mount Adapter and
SE-135 Surface-Mounting Details .........................6
SE-IP65CVR-G Weatherproof Cover Outline ......7
SE-IP65CVR-G Weatherproof Cover Installation 8
SE-CS10 and SE-CS40 Current Sensors ...............9
SE-TA12A and SE-TA12A-WL Termination
Assemblies ...........................................................10
SE-TA12ASF-WL Small-Format-Wire-Lead
Termination Assembly .........................................11
RK-132 Remote Indication and Reset Kit ...........11
PPI-600V Parallel-Path Isolator ..........................12
PPI-600V Typical Installation .............................13
SE-135 with Ferrites Installed .............................14
Current Sensor Shield Connection.......................14
Ground-Fault-Test Circuit ...................................21
Termination-Assembly-Test Circuits...................21
LIST OF TABLES
TABLE
1
2
3
PAGE
Coil Address ..........................................................2
Holding Register Address ......................................2
Ground-Fault-Test Record ...................................20
DISCLAIMER
Specifications are subject to change without notice.
Littelfuse Startco is not liable for contingent or
consequential damages, or for expenses sustained as a result
of incorrect application, incorrect adjustment, or a
malfunction.
SE-135 Ground-Fault Ground-Check Monitor
This page intentionally left blank.
Page iii
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
1. GENERAL
The SE-135 is a microprocessor-based, combination
ground-fault and ground-wire monitor for resistancegrounded systems. It has a switching power supply that
accepts a wide range of ac and dc voltages, and its
specifications apply over an industrial temperature range
at high humidity. The SE-135 meets the IEEE surgewithstand-capability tests (oscillatory and fast transient)
for protective relays and relay systems.
Isolated,
normally open and normally closed contacts are provided
for contactor control or for shunt or undervoltage
operation in a breaker-trip circuit.
All operating
conditions are clearly annunciated and two Form C
contacts are provided for remote indication. The SE-135
is housed in an anodized extruded-aluminum enclosure,
and all connections are made with plug-in, wire-clamping
terminal blocks. Provision is made for both panel and
surface mounting.
The ground-fault circuit detects fundamentalfrequency, zero-sequence current with a window-type
current sensor and it verifies that the current sensor is
connected and not shorted. A definite-time characteristic
with 11 trip levels and 11 trip times allows coordination
in virtually any resistance-grounded system. Although
other current sensors may satisfy the verification circuit,
only SE-CS10-series and SE-CS40-series sensors have
characteristics that meet system specifications. Currentsensor verification can be disabled for a ground-checkonly application.
The ground-check circuit has an open-circuit voltage of
30 Vdc, which is not a hazard to personnel, and it has an
output drive current above 100 mA for optimum
performance in slip-ring, commutated-load, and highinduced-ac applications. Features include an externally
accessible ground-check fuse, a resistance-insertion test,
3-kV isolation between the ground-check loop and the
monitor electronics, and a PPI-600V accessory for
parallel-ground-path rejection. A PPI-600V will also
eliminate intermachine arcing and prevent stray ac and dc
currents from flowing in the monitored ground wire.
Unlike ground-check circuits using other termination
devices, and especially those with phase-reversal
switches, a ground-check circuit using a termination
device with a Zener characteristic is capable of loop
measurements that are independent of current in the phase
conductors. The SE-135 ground-check circuit recognizes
the SE-TA12A-series 12-volt Zener characteristic as a
valid end-of-line completion. This is the only passive
characteristic that will satisfy the ground-check circuit’s
multi-level drive, allow induced currents to circulate in
the ground-check loop, survive a phase-to-ground-check
fault, and clamp the ground-check voltage during the
fault. Although a standard 12-volt Zener diode may
engage the SE-135’s ground-check circuit, only an
Page 1
Rev. 3-C-100314
SE-TA12A-series termination assembly has the
compensation required to meet system specifications.
2. OPERATION
2.1 GROUND-FAULT CIRCUIT
2.1.1 GF TRIP TIME SETTING
The ground-fault circuit has a definite-time
characteristic with 11 settings from 0.1 to 2.5 seconds.
Time-coordinated ground-fault protection requires the trip
time to be longer than the trip time of downstream
ground-fault devices.
2.1.2 GF TRIP LEVEL SETTING
The trip level of the ground-fault circuit is switch
selectable with 11 settings from 0.5 to 12.5 A for the
SE-CS10-series CT and from 2 to 50 A for the SE-CS40series CT.
A minimum tripping ratio of five is
recommended to achieve at least 80% winding protection,
and this requires the trip level to be no more than 20% of
the grounding-resistor let-through current. A groundfault trip is latched, requiring a reset. A current-sensor
failure will also cause a ground-fault trip.
See
Section 3.1.
If the SE-135 is operated in a ground-check-only
application and an SE-CS10 is not connected, connect
terminals 17 and 18 to disable sensor verification. See
Fig. 1.
2.2 GROUND-CHECK CIRCUIT
The ground-check loop consists of the outgoing
ground-check conductor, quick-coupler connections, the
SE-TA12A-series termination assembly, the SE-TA12A
connection to equipment frame or ground bus, the
ground-return path, and the SE-135 cable-groundterminal connection to substation ground.
The SE-135 detects a valid ground-check loop when an
SE-TA12A-series termination assembly is detected in the
loop and loop resistance is less than 28 ohms (45 ohms
for XGC option). The loop is not valid if open (or high
resistance), or if the ground-check conductor is shorted to
ground.
When the ground-check loop is valid, the SE-135
ground-check circuit can be tested by pressing the GC
TEST button or by shorting GC TEST terminals 11 and
12. This test invalidates the loop by inserting 47 ohms
(75 ohms for XGC option) in the ground-check loop and
a trip should occur in less than 250 ms.
The ground-check circuit is usually operated in the
non-latching mode; however, it can be operated in the
latching mode by connecting terminals 14 and 15.
The ground-check circuit is protected by a 1.5-A timedelay fuse (F1).
If the SE-135 is used in a ground-fault-only
application, an SE-TA12A must be connected to the
Page 2
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
ground-check and cable-ground terminals to validate the
ground-check circuit. See Fig. 1.
The typical maximum distance of a trailing cable is
5.0 km (3.1 miles) for the standard model and up to
10 km (6.3 miles) for the XGC option. Several factors
may limit the maximum distance of the cable, including
the ground-check wire gauge, and induced ac current in
the ground-check loop.
2.3 RESET
All ground-fault trips are latching and ground-check
trips can be latching or non-latching. To reset groundfault trips or latching ground-check trips, press the
RESET button or connect the RESET terminals 9 and 10.
See Fig. 1.
Cycling the supply voltage will also reset ground-fault
trips; however, if the ground-check circuit is configured
for latching fail-safe operation, the ground-check circuit
will trip when supply voltage is applied.
The single-shot reset circuit responds only to a
momentary closure; a jammed or shorted button will not
maintain a reset signal. The front-panel RESET button is
inoperative when remote-reset terminals 9 and 10 are
connected. See Section 4.5.
2.4 TRIP RELAY
Isolated, normally open (Trip A, terminals 24 and 25)
and normally closed (Trip B, terminals 22 and 23)
contacts are provided for use in a contactor- or breakercontrol circuit. With no connection between terminals 12
and 13, the SE-135 trip relay operates in the fail-safe
mode. This mode is used with undervoltage devices
where the trip relay energizes and its normally open
contact closes if the ground-fault and ground-check
circuits are not tripped. This mode is recommended
because:
 Undervoltage devices release if supply voltage fails.
 Undervoltage ground-check circuits do not allow the
power circuit and open cable couplers to be energized
until the ground-check loop is verified.
The fail-safe mode of operation of the SE-135 trip
relay can be used for shunt-trip circuits with a storedenergy trip source. In this case, the normally closed trip
contact is used—the contact opens when the SE-135 is
energized and the ground-fault and ground-check circuits
are not tripped. Care must be taken to ensure safe and
correct operation during power up and power down.
Connect terminals 12 and 13 for non-fail-safe trip relay
operation with shunt-trip devices. In this mode, the
normally open trip contact is used—the trip contact is
closed when a ground-fault or ground-check trip occurs.
Shunt-trip circuits are not fail-safe and are not
recommended because:
 Shunt-trip devices do not operate if supply voltage
fails.
 Shunt-trip ground-check circuits allow the power
circuit and open cable couplers to be energized for a
short interval after supply voltage is applied.
CAUTION: The SE-135 is not a lock-out device. Follow
lock-out procedures for maintenance.
2.5 NETWORK COMMUNICATIONS
An IEEE 802.3 port with Modbus® TCP Ethernet
protocol is available.
The SE-135 default IP address is 10.0.0.1. Use
SE-MON-GFGC to change the IP address, monitor
connected SE-135 units, and to issue remote commands.
SE-MON-GFGC
can
be
downloaded
from
www.littelfuse.com/relayscontrols.
If the computer running SE-MON-GFGC has more
than one active network connection, SE-MON-GFGC
may not detect the SE-135. Ensure SE-MON-GFGC is
not blocked by Windows Firewall by adding it to the
Firewall Exceptions list in the Windows Control Panel.
On start-up SE-MON-GFGC scans the network for
SE-135 units and displays them in a list. Select one from
the list and click “Edit” to change the IP address, subnet
mask, or description. When selecting an IP address,
ensure it is not already in use. Click “Apply” to save the
changes. SE-MON-GFGC will pause for five seconds
and scan the network again.
To view the status of an SE-135, select the unit and
click “Monitor”. If a warning appears, the SE-135 may
have been set to an IP address that is not accessible by the
network.
Table 1 shows the SE-135 coil addresses. Table 2
provides the holding registers in 16-bit format.
A remote reset can be generated by writing DO1 high
for one second and then writing it back to low.
COIL
ADDRESS
00001
00002
00003
00018
TABLE 1. COIL ADDRESS
DESCRIPTION
NAME
ATTRIBUTE
GC Status
GF Status
Trip Relay
Remote Reset
Read
Read
Read
Read/Write
TABLE 2.
REGISTER
ADDRESS
40301
40303
DI0
DI1
DI2
DO1
HOLDING REGISTER ADDRESS
DESCRIPTION
ATTRIBUTE
DI0 – DI11
DO0 – DO5
Read
Read/Write
SE-135 Ground-Fault Ground-Check Monitor
3. INDICATION
3.1 GROUND FAULT
A red TRIP LED indicates a ground-fault trip and the
remote-indication relay GF is energized when the groundfault circuit is not tripped (fail-safe indication-contact
operation). A green SENSOR LED indicates a current
sensor is correctly connected. If the SE-CS10- or
SE-CS40-series current sensor is disconnected or shorted,
the green LED will go out and the ground-fault circuit
will trip. If the sensor fault is intermittent, the groundfault circuit will trip and the green LED will flash to
indicate that the trip was initiated by a sensor fault.
NOTE: The SE-CS10- and SE-CS40-series current
sensors are 600-V-rated current transformers. When
system voltage is above 600 V, ensure conductors passed
through the sensor window are insulated to system
voltage.
3.2 POWER
The green POWER LED indicates that the internal
power supply is on.
3.3 DIAGNOSTIC ERROR
The red DIAGNOSTIC ERROR LED indicates that an
internal error caused the SE-135 to trip. Return the
SE-135 to the factory if a reset does not clear the trip.
Induced ac current in the ground-check loop can cause
the LED to flicker. This is a normal condition and does
not indicate a diagnostic error; the ground-check
monitoring circuit is not affected.
3.4 GROUND CHECK
A red TRIP LED indicates a ground-check trip. A
green VALID LED indicates a valid ground-check loop
and the remote-indication relay GC is energized when the
ground-check loop is valid (fail-safe indication-contact
operation). Two yellow LED’s indicate the status of an
invalid ground-check loop. OPEN indicates the loop
resistance exceeds the trip resistance and SHORT
indicates the ground-check conductor is shorted to the
ground conductor. A flashing yellow LED indicates the
corrected cause of a latched ground-check trip.
4. INSTALLATION
4.1 GENERAL
This ground-fault ground-check monitoring system
consists of an SE-135 Monitor, an SE-CS10- or
SE-CS40-series Current Sensor, and an SE-TA12A-series
Termination Assembly connected as shown in Fig. 1. If
required, remote indication and reset can be implemented
with standard pilot devices, or with an RK-132 RemoteIndication-and-Reset Kit.
Page 3
Rev. 3-C-100314
4.2 MONITOR
Each SE-135 is packaged with both panel- and surfacemounting hardware.
Outline and panel-cutout dimensions for the SE-135
are shown in Fig. 2. To panel mount the SE-135, insert it
through the panel cutout and secure it with the four
supplied 8-32 locknuts and flat washers.
If an optional SE-IP65CVR-G is used, follow the
included installation instructions. See Figs. 4 and 5.
All connections to the SE-135 are made through plugin, wire-clamping terminal blocks for 24 to 12 AWG (0.2
to 2.5 mm2) conductors. Each plug-in terminal block can
be secured to the monitor by two captive screws for
reliable connections in high-vibration applications.
Outline dimensions and mounting details for surface
mounting an SE-135 are shown in Fig. 3. Fasten the
SE-134-SMA Surface-Mount Adapter to the mounting
surface and make connections to the adapter terminal
blocks. Follow the instructions in Fig. 3 to install or
remove the SE-135.
Use terminal 1 (L1) as the line terminal on ac systems
or the positive terminal on dc systems. Use terminal 2
(L2/N) as the neutral terminal on ac systems or the
negative terminal on dc systems.
NOTE: On revision 4 and newer units, terminal 3 (SPG)
is internally connected to terminal 4. For these units an
external terminal-3-to-terminal-4 connection is not
required, nor is it necessary to remove the terminal-3
connection for dielectric-strength testing.
4.3 CURRENT SENSORS
Outline dimensions and mounting details for the
SE-CS10- and SE-CS40-series current sensors are shown
in Fig. 6. Pass only phase conductors through the sensor
window as shown in Fig. 1. If a shield, ground, or
ground-check conductor enters the sensor window, it
must be returned through the window before it is
terminated. Connect the current sensor to terminals 16
and 17. Ground terminal 17. Current-sensor primary and
secondary connections are not polarity sensitive. See
Section 4.7.
4.4 TERMINATION ASSEMBLY
Outline dimensions and mounting details for the SETA12A, SE-TA12A-WL, and SE-TA12ASF-WL are
shown in Figs. 7 and 8. Install the SE-TA12A at the load
to complete the ground-check loop as shown in Fig. 1.
Connect terminal G of the SE-TA12A to the equipment
frame so that the ground-conductor-to-equipment-frame
connection will be included in the monitored loop.
4.5 REMOTE OPERATION
Remote indication contacts and a reset input are
provided as shown in Fig. 1.
Page 4
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
The optional RK-132 Remote Kit is shown in Fig. 9.
Connect terminals of the green ground-check indicator to
SE-135 terminals 26 and 27 and the red ground-fault
indicator to terminals 19 and 21. For remote reset,
connect the normally open push-button switch across
terminals 9 and 10.
the monitored ground wire. See Figs. 10 and 11. See
Technical Note GC-10 “Parallel Path Isolator” at
www.littelfuse.com/relayscontrols, or contact Littelfuse
Startco for application details.
4.7 FERRITE PLACEMENT
A ferrite kit is included with CE-compliant options
only. Where CE compliance is desired, install each
ferrite as shown in Fig. 12. If a current sensor is used,
connect the shield wire as shown in Fig. 13.
4.6 PARALLEL-PATH ISOLATION
A PPI-600V can be used for parallel-path rejection. A
PPI-600V will also eliminate inter-machine arcing and
prevent stray ac and dc currents from flowing in
SE-CS10 or
SE-CS40
LOAD
GROUND
GROUND CHECK
L
GC
N
G
S E - TA 1 2 A
GROUND-CHECK
TERMINATION
1
L2/N
L1
2
24
TRIP A
25
22
TRIP B
23
19
GF
20
GF
21
GC
27
GC
28
UV
STOP
START
GC
NOTE 3
HOLD-IN
CONTACT
R
G
S E - TA 1 2 A
GF INDICATOR
26
NOTE 3
G
GC INDICATOR
REMOTE RESET
9
10
RESET
CURRENT
SENSOR
NOTES:
16
17
CONNECT 17 & 18 TO
DISABLE SENSOR
VERIFICATION
REMOTE GC TEST
11
12
CONNECT 12 & 13
FOR NON-FAIL SAFE
OPERATION OF THE
TRIP RELAY
CONNECT 14 & 15
FOR LATCHING
GROUND CHECK
13
14
15
3
4
GC
TEST
DISABLE
18
SENSOR
VERIFICATION
SE-135
SPG
5
6
7
CABLE
GROUND
FIGURE 1. SE-135 Typical Application.
8
1. RELAY CONTACTS SHOWN WITH
SE-135 DE-ENERGIZED.
2. TERMINALS 3/4, 5/6 AND 7/8 ARE
INTERNALLY CONNECTED.
3. EXTERNAL LIGHTS AND SWITCHES
NOT INCLUDED WITH SE-135.
OPTIONAL RK-132 REMOTE
INDICATION AND RESET KIT
AVAILABLE. SEE FIG. 9 AND
ORDERING INFORMATION FOR
DETAILS.
NFS
GROUNDCHECK
LATCH
GROUND
CHECK
ALTERNATE TERMINATION CIRCUIT
FOR REMOTE CONTACTOR CONTROL
NOTE 2
Page 5
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
145.0
(5.71)
16.0
(0.63)
98.3
(3.87)
91.7
(3.61)
PANEL THICKNESS
1.6 (0.06) TO 4.8 (0.19)
LITTELFUSE STARTCO
GROUND-FAULT
GROUND-CHECK MONITOR
GROUND
FAULT
TRIP
DIAGNOSTIC
ERROR
SENSOR
POWER
SE-135
GROUND
CHECK
RESET
TRIP
1
2
3
4
TRIP
VALID
- L1
- L2
- SPG
-
GC TEST
NFS
GC LATCH
VALID
OPEN
10
8 2.5 12
3.0 20
6 2.0
1.5
5.0
4 1.0
7.5 30
10.0
40
12.5
50
.40
.30
.20
.10
185.4
(7.30)
CS10
CS40
GF TRIP LEVEL (A)
.50 .70 1.0
(8.37)
.75
.50
2
OPEN
SHORT
212.6
3
CURRENT SENSOR
DISABLE SENSOR
VE R I FI CAT I O N
9
10
11
12
13
14
15
16
17
18
1.3
1.6
2.0
2.5
5
6
GROUND
CHECK
GF
TRIP B
GF TRIP TIME (s)
TRIP A
RESET
7
8
GC TEST
GC
CABLE
GROUND
19
20
21
22
23
24
25
26
27
28
FUSE F1: 1.5 A 500 VAC TIME DELAY
F1
FRONT VIEW
CLEARANCE REQUIRED
FOR FUSE ACCESS
35.0
(1.38)
FUSE F1: 1.5 A 500 VAC TIME DELAY
F1
REAR VIEW
SIDE VIEW
92.7
(3.65)
76.2
(3.00)
NOTES:
186.0
(7.32)
200.0
(7.87)
1. DIMENSIONS IN MILLIMETRES (INCHES).
8.2
(0.32)
25.4
25.4
(1.00) (1.00)
76.2
(3.00)
7.0
(0.28)
R=4.8 (0.19)
MAXIMUM
4.4 (0.173) DIA
4 LOCATIONS
PANEL-MOUNT CUTOUT
FIGURE 2. SE-135 Outline and Panel-Mounting Details.
Page 6
Rev. 3-C-100314
8.0
(0.31)
RETAINER SCREW
RETAINER
6.4
114.3
(4.50)
98.3
(3.87)
(0.25)
SE-135 Ground-Fault Ground-Check Monitor
152.0
(5.98)
LITTELFUSE STARTCO
GROUND-FAULT
GROUND-CHECK MONITOR
GROUND
FAULT
DIAGNOSTIC
ERROR
TRIP
L1 - 1
L2-2
SPG -3
-4
GROUND
CHECK
TRIP
SENSOR
POWER
VALID
VALID
16
CURRENT SENSOR
17
DISABLE SENSOR
18
VERIFICATION
OPEN
CS10
CS40
OPEN
12
3.0 20
5.0
7.5 30
SHORT
10.0
40
12.5
50
GF TRIP LEVEL (A)
.50 .70 1.0
GF
.40
.30
.20
.10
GROUND 5
CHECK 6
TRIP B
225.4
(8.87)
10
2.5
(8.37)
8
2.0
1.5
4 1.0
6
.75
3
.50
2
19
20
21
22
23
24
25
26
27
28
1
2
3
4
TRIP
212.6
9
RESET
10
11
GC TEST
12
(NOT USED
NFS O
N SE-134)
13
14
GC LATCH
15
SE-135
1.3
1.6
2.0
2.5
5
6
GF TRIP TIME (s)
TRIP A
GC
CABLE 7
GROUND 8
RESET
7
8
GC TEST
FUSE F1: 1.5 A 500 VAC TIME DELAY
FUSE F1:
1.5 A
500 VAC
TIME
DELAY
28.6
CLEARANCE REQUIRED
FOR FUSE ACCESS
FRONT VIEW
SE-134-SMA
(1.13)
F1
(1.00)
(2.50)
5.0
63.5
(0.20)
FRONT VIEW
25.4
SIDE VIEW
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
(NOTE 2)
2. MOUNTING SCREWS: M4 OR 8-32 PANHEAD.
INSTALLATION
215.9
(8.50)
1. LOOSEN RETAINER SCREWS, MOVE RETAINERS
OUTWARD AND TIGHTEN RETAINER SCREWS.
2. MATE MONITOR WITH ADAPTER PLUG-IN TERMINALS
LOOSEN RETAINER SCREWS TO LET RETAINERS
SNAP OVER MONITOR BACKPLATE.
3. ENSURE THAT RETAINERS ARE AGAINST MONITOR
BODY AND TIGHTEN RETAINER SCREWS.
REMOVAL
1. LOOSEN RETAINER SCREWS, SLIDE RETAINERS AWAY
FROM MONITOR BODY, AND TIGHTEN RETAINER SCREWS.
BEZEL OUTLINE
2. PULL MONITOR FORWARD.
ADAPTER PANEL OUTLINE
MOUNTING DETAIL
FIGURE 3. SE-134-SMA Surface Mount Adapter and SE-135 Surface-Mounting Details.
Page 7
Rev. 3-C-100314
TO PREVENT UNAUTHORIZED ENTRY:
(1.34)
34.0
SE-135 Ground-Fault Ground-Check Monitor
1. USE WIRE SEAL THROUGH HOLES IN
WEATHERPROOF COVER ASSEMBLY, OR
2. SECURE WITH THE PLASTIC THREAD FORMING
SCREW SUPPLIED IN KIT.
SHOWN
WITH
SEAL
(9.84)
250.0
TOP VIEW
HOLE FOR
SEAL WIRE
127.0
(5.00)
FRONT VIEW
NOTES:
1.
DIMENSIONS SHOWN IN MILLIMETRES (INCHES).
2.
SHOWN WITH WEATHERPROOF SNAPS CLOSED.
3.
REFER TO PANEL MOUNTING CUTOUT (FIGURE 2) FOR PANEL
MOUNTING DETAIL.
FIGURE 4. SE-IP65CVR-G Weatherproof Cover Outline.
SIDE VIEW
Page 8
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
INSTALL O-RING INTO
GROOVE IN THE REAR
OF WEATHERPROOF
WINDOW.
INSERT THE SE-135 THROUGH OPENING
OF THE WEATHERPROOF WINDOW, UNTIL IT
IS SECURELY NESTED TO THE BACK OF THE
DARK GREY PVC PANEL.
FRONT-PANEL
DETAILS NOT SHOWN.
INSTALL O-RING INTO THE GROOVE IN THE REAR
OF WEATHERPROOF WINDOW ASSEMBLY.
INSERT ASSEMBLY INTO PANEL AND FASTEN WITH
THE HARDWARE PROVIDED WITH THE SE-135.
FIGURE 5. SE-IP65CVR-G Weatherproof Cover Installation.
Page 9
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
C
F
C
SE-CS10-6, SE-CS10-8,
AND SE-CS40-6
D
G
D
E
H
SE-CS10-2.5
AND SE-CS10-4
MOUNTING DETAIL
TOP
E
TERMINAL LOCATION
MAY VARY
SE-CSXX-X
R
CURRENT SENSOR
X1
6 0 0 V I NS . C L A S S 1 0 K V B IL
COUNTRY OF ORIGIN: USA
B
J
A
H1
C
1-800-TEC-FUSE (1-800-832-3873)
I
FRONT
SIDE
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. RoHS COMPLIANCE PENDING.
PART
NUMBER
3. EN 60044-1 COMPLIANT.
DIMENSIONS
A
B
C
D
E
F
G
MOUNTING
SCREW
H
I
J
88.9 (3.50)
N/A
SE-CS10-2.5 63.5 (2.50) 135.1 (5.32) 124.0 (4.88) 72.6 (2.86)
27.9 (1.10) 69.9 (2.75) 54.4 (2.14)
M4 (8-32)
108.0 (4.25) 184.0 (7.24) 169.9 (6.69) 77.2 (3.04)
32.5 (1.28) 123.7 (4.87) 60.5 (2.38)
M4 (8-32)
SE-CS10-4
138.2 (5.44) 138.2 (5.44)
SE-CS10-6
160.3 (6.31) 229.0 (9.00) 215.9 (8.50) 101.6 (4.00) 31.8 (1.25) 165.0 (6.50) 73.2 (2.88) M10 (0.375)
SE-CS40-6
171.5 (6.75) 171.5 (6.75)
SE-CS10-8 209.5 (8.25) 279.4 (11.00)266.7 (10.50) 108.7 (4.28) 38.9 (1.53) 225.0 (8.86) 80.0 (3.15) M10 (0.375)
200.7 (7.90) 200.7 (7.90)
FIGURE 6. SE-CS10 and SE-CS40 Current Sensors.
Page 10
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
SE-TA12A
41.5
40.0
(1.63)
10.5
(0.41)
10.5
(0.87)
(0.41)
(0.75)
8.0
22.2
(1.57)
(0.31)
40.0
(1.57)
19.0
NOTE 2
GC
89.0
(3.50)
(0.31)
(4.13)
8.0
105.0
(4.13)
105.0
G
SE-TA12A
TERMINATION
ASSEMBLY
4.5 (0.18) Ø, C’BORE 10.0 (0.39) Ø
3.2 (0.13) DEEP
SIDE
FRONT
MOUNTING DETAIL
NOTES:
1. DIMENSIONS IN MILLIMETRES (INCHES).
2. MOUNTING SCREWS: M4 OR 8-32.
3. TERMINAL SCREWS 6-32 x 0.25.
SE-TA12A-WL
SE-TA12A-WL
T E R M I N AT I O N
A S S E M B LY
NOTES:
1. DIMENSIONS SAME AS SE-TA12A.
2. WIRE LEADS #14 AWG (2.08 mm2).
3. CAN BE IMMERSED IN GLYCOL.
FIGURE 7. SE-TA12A and SE-TA12A-WL Termination Assemblies.
G
356 (14) OF
GREEN/YELLOW WIRE
GC
356 (14) OF
YELLOW WIRE
Page 11
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
12.7
(0.50)
3.2
(0.13)
50.8
(2.00)
12.7
4.0
(0.16)
(0.50)
NOTE 2
MOUNTING DETAIL
SE-TA12ASF-WL
SE-TA12
ASF-WL TERMINATION ASSY
Serial No: DM131000182
Rev:
Rating: 12.0 Vdc @ 105 mA 12 W Max C
R
US
LR 53428
01
Use with:
SE-135
Ground-Fault
Ground-Check Monitor
SIDE
NOTES:
58.8
(2.32)
1. DIMENSIONS IN MILLIMETRES (INCHES).
19.0
(0.75)
GC
300 (12) OF
YELLOW WIRE
G
300 (12) OF
GREEN/YELLOW WIRE
2. MOUNTING SCREWS M3.5 OR 6-32.
3. CAN BE IMMERSED IN GLYCOL.
TOP
FIGURE 8. SE-TA12ASF-WL Small-Format-Wire-Lead Termination Assembly.
30.0
(1.18)
GROUND CHECK
29.9
(1.17)
PUSH BUTTON
(1.71)
43.5
36.6
(1.44)
(0.59)
22.2 (0.87) DIA
NOTES:
LEGEND PLATES
PILOT LIGHTS
14.9
(0.59)
NOTE 4
30.0 MINIMUM
(1.18)
1. TWO RED LED LIGHTS
24-120 VAC/DC, NOT POLARITY
SENSITIVE.
29.9
(1.17)
MOUNTING DETAIL
FIGURE 9. RK-132 Remote Indication and Reset Kit.
2. YELLOW PUSH BUTTON
3 A @ 240 VAC - A600,
0.5 A @ 125 VDC - Q600.
(1.57)
36.6
(1.44)
GROUND FAULT
LEGEND
PLATE
40.0 MINIMUM
17.3
(0.68)
22.5
(0.89)
15.0
X1
X2
43.5
(1.71)
25.0
(0.98)
RESET
3. DIMENSIONS IN MILLIMETRES
(INCHES).
4. ----- INDICATES CLEARANCE
REQUIRED.
5. PANEL THICKNESS 1.0 TO 6.0
(0.04 TO 0.24).
6. NEMA 4X.
Page 12
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
8-32 TAP
34.9
(1.38)
152.4
260.4
(10.25)
190.5
(7.50)
63.5
(2.50)
12.7
19.1
(0.75) (0.50)
19.1
(0.75)
9.5 DIA.
(0.38 DIA.)
34.9
(1.38)
38.1
(1.50)
26.2
(1.03)
102.4
(4.03)
38.1
(1.50)
(6.00)
235.0
(9.25)
NOTES:
1.
FIGURE 10. PPI-600V Parallel-Path Isolator.
DIMENSIONS IN MILLIMETRES (INCHES).
Page 13
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
GROUND CHECK MONITOR
SE-105, SE-107, SE-134C, OR SE-135
CABLE
GROUND
G
GROUND
CHECK
GC
GC
G
OUTGOING
GROUND CHECK
OUTGOING
GROUND
INCOMING
GROUND
CHASSIS GROUND BUS
PPI-600V
NOTES:
1. THE PARALLEL-PATH ISOLATOR IS NOT POLARIZED. EITHER FLANGE CAN BE
CONNECTED TO CHASSIS.
2. THE OUTGOING GROUND MUST BE ISOLATED FROM THE CHASSIS GROUND BUS.
IF A FLANGE-MOUNTED RECEPTACLE IS USED, VERIFY THAT THE FLANGE IS ISOLATED
FROM THE GROUND PIN, AND
- USE A MATING PLUG WITH A NON-METALLIC HOUSING, OR
- ISOLATE THE FLANGE FROM THE CHASSIS IF THE MATING PLUG HAS A
METALLIC HOUSING.
3. CABLE PLUGS AND RECEPTACLES WITH GROUNDED METAL HOUSING MUST BE
ISOLATED FROM GROUND TO PREVENT PARALLEL GROUND PATHS.
4. FOR SYSTEMS ABOVE 600 VAC, CONNECT A V131DA40 MOV ACROSS THE PPI-600V.
FIGURE 11. PPI-600V Typical Installation.
SE-135 Ground-Fault Ground-Check Monitor
Page 14
Rev. 3-C-100314
NOTES:
1. PASS WIRES FROM TERMINALS 9 TO
15 THROUGH A FERRITE.
2. PASS THE SHIELDED CABLE FROM
TERMINALS 16 TO 17 THROUGH A
FERRITE. CONNECT THE SHIELD TO
CHASSIS AS SHOWN IN FIG. 13.
NOTE 1
3. DOUBLE LOOP THE WIRES FROM
TERMINALS 19 TO 28 THROUGH A
FERRITE.
4. PASS WIRES FROM FERRITE (NOTE 3)
THROUGH A SECOND FERRITE.
NOTE 2
5. ALL FERRITES ARE LAIRD
TECHNOLOGIES 28A2024-0A2 AND
ARE ROHS COMPLIANT.
NOTE 3
FIGURE 12. SE-135 with Ferrites Installed.
FIGURE 13. Current Sensor Shield Connection.
NOTE 4
SE-135 Ground-Fault Ground-Check Monitor
5. TECHNICAL SPECIFICATIONS
5.1 SE-135
Supply:
Option 0 .................................25 VA, 120-240 Vac
(+10, -45%), 50-400 Hz;
15 W, 110-250 Vdc
(+10, -25%)
Option 1 .............................. 15 W, 24-48 Vdc
(+50, -25%);
20 VA, 48 Vac
(+10, -55%), 50-100 Hz
Ground-Fault Circuit:
Digital Filter ....................... 50 to 60 Hz, Bandpass
3 dB Frequency Response .. 30 to 90 Hz
Trip-Level Settings:
SE-CS10-x ...........................50, .75, 1.0, 1.5, 2.0, 2.5,
3.0, 5.0, 7.5, 10.0, and
12.5 A
SE-CS40-x ..........................2, 3, 4, 6, 8, 10, 12, 20, 30,
40, and 50 A
Trip-Time Settings .............. .10, .20, .30, .40, .50, .70,
1.0, 1.3, 1.6, 2.0, and
2.5 s
Thermal Withstand:
SE-CS10-x........................ 150 A Continuous
1,000 A for 2.5 s
(Ground-Fault Current)
SE-CS40-x ..........................600 A Continuous
4,000 A for 2.5 s
(Ground-Fault Current)
Sensor Lead Resistance ...... 2  maximum
Trip-Level Accuracy:
SE-CS10-x ....................... 5% or 0.1 A
SE-CS40-x ....................... 5% or 0.4 A
Trip-Time Accuracy ........... +50, -15 ms
Sensor Verification ............. Enabled or Disabled
Sensor-Fault Detection ....... Open and Short
Trip Mode ........................... Latching
Ground-Check Circuit:
Open-Circuit Voltage ......... 30 Vdc
Output Impedance............... 136 
Loop Current ...................... 105 mA
Induced-ac Withstand ......... 60 Vac Continuous,
120 Vac for 10 s,
250 Vac for 0.25 s
Pull-in Time ........................  1.5 s
Trip Resistance:
Standard ........................... 28  ± 10%
XGC Option ..................... 45  ± 10%
Trip Time:
Standard at 50  .............. 220 ± 30 ms
XGC Option at 75  ........ 220 ± 30 ms
Short Detection ................... Yes
Isolation .............................. 3 kV, 60 Hz, 1 s
Test ..................................... Front-Panel Button and
Remote, N.O. Contact
Fuse Rating (F1) ................. 1.5 A, 500 Vac,
Time Delay
Fuse Part Number ............... FNQ 1½ Buss Fusetron
Page 15
Rev. 3-C-100314
Trip Mode........................... Latching or Non-Latching
Trip Relay:
CSA/UL Contact Rating..... 8 A Resistive 250 Vac,
5 A 30 Vdc,
0.25 HP,
B300 Pilot Duty
Supplemental Contact Ratings:
Make/Carry (0.2 s)........... 30 A
Break dc ........................... 75 W Resistive,
35 W Inductive (L/R < 0.04)
Break ac ........................... 2,000 VA Resistive,
1,500 VA Inductive
(PF > 0.4)
Subject to maximums of 8 A and 250 V (ac or dc)
Contact Configuration ........ Isolated N.O. and N.C.
Contacts
Operating Mode.................. Fail-Safe or
Non-Fail-Safe
Remote-Indication Relays:
CSA/UL Contact Rating..... 8 A Resistive 250 Vac,
8 A 30 Vdc
Supplemental Contact Ratings:
Make/Carry (0.2 s)........... 20 A
Break dc ........................... 50 W Resistive,
25 W Inductive (L/R < 0.04)
Break ac ........................... 2,000 VA Resistive,
1,500 VA Inductive
(PF > 0.4)
Subject to maximums of 8 A and 250 V (ac or dc)
Contact Configuration ........ N.O and N.C. (Form C)
Operating Mode.................. Fail-Safe
Trip Reset ................................. Front-Panel Button and
Remote, N.O. Contact
Terminal Block Rating ............. 10 A, 300 Vac,
12 AWG (2.5 mm2)
PWB Conformal Coating ......... MIL-1-46058 qualified,
UL QMJU2 recognized
Mounting Configuration .......... Panel Mount and
Surface Mount
Dimensions:
Height .................................... 213 mm (8.4”)
Width ..................................... 99 mm (3.9”)
Depth ..................................... 132 mm (5.2”)
Shipping Weight ...................... 2.3 kg (5.1 lb)
Environment:
Operating Temperature ......... -40 to 60°C (-40 to 140°F)
Storage Temperature ............. -55 to 80°C (-67 to 176°F)
Humidity............................. 85% Non-Condensing
Page 16
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
Surge Withstand ....................... ANSI/IEEE 37.90.1-2002
(Oscillatory and Fast
Transient)
EMC Tests:
Verification tested in accordance with EN 60255-26:2009.
Radiated and Conducted
Emissions ............................ CISPR 22:2008-09
Class A
Current Harmonics and
Voltage Fluctuations ........... IEC 61000-3-2
and IEC 61000-3-3
Class A
Electrostatic Discharge ....... IEC 61000-4-2
± 6 kV contact discharge
(direct and indirect)
± 8 kV air discharge
Radiated RF Immunity ....... IEC 61000-4-3
10 V/m, 80-1,000 MHz,
80% AM (1 kHz)
10 V/m, 1.0 to 2.7 GHz,
80% AM (1 kHz)
Fast Transient ..................... IEC 61000-4-4
Class A: ± 4 kV (on AC
mains and I/O lines)
Surge Immunity .................. IEC 61000-4-5
Zone B
± 1 kV differential mode
± 2 kV common mode
Conducted RF Immunity .... IEC 61000-4-6
10 V, 0.15-80 MHz,
80% AM (1 kHz)
Magnetic Field
Immunity ............................ IEC 61000-4-8
50 Hz and 60 Hz
30 A/m and 300 A/m
Power Frequency ................ IEC 60255-22-7
Zone A: differential mode
150 Vrms
Zone A: common mode
300 Vrms
1 MHz Burst ....................... IEC 61000-4-18
± 1 kV differential mode
(line-to-line)
± 2.5 kV common mode
Certification ............................. CSA Canada and USA
R
C
LR 53428
US
UL Listed
Australia
N11659
CE, European Union
FCC
To: CSA C22.2 No. 14 Industrial Control Equipment
UL 508 Industrial Control Equipment
UL 1053 Ground Fault Sensing and Relaying
Equipment
CE Low Voltage Directive
IEC 61010-1:2010 (3rd Edition)
FCC CFR47, Part 15, Subpart B,
Class A – Unintentional Radiators
Compliance .............................. RoHS Pending
5.2 CURRENT SENSORS
Environment:
Operating Temperature....... -40 to 60C (-40 to 140°F)
Storage Temperature .......... -55 to 80C (-67 to 160°F)
SE-CS10-2.5:
Current Ratio ...................... 1,000:5 A
Insulation ............................ 600-V Class
Window Diameter .............. 63 mm (2.5”)
Shipping Weight................. 690 g (1.5 lb)
SE-CS10-4:
Current Ratio ...................... 1,000:5 A
Insulation ............................ 600-V Class
Window Diameter .............. 108 mm (4.2”)
Shipping Weight................. 1.9 kg (4.3 lb)
SE-CS10-6:
Current Ratio ...................... 1,000:5 A
Insulation ............................ 600-V Class
Window Diameter .............. 160 mm (6.3”)
Shipping Weight................. 2.2 kg (4.8 lb)
Page 17
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
SE-CS10-8:
Current Ratio ...................... 1,000:5 A
Insulation ............................ 600-V Class
Window Diameter............... 209 mm (8.2”)
Shipping Weight ................. 2.2 kg (4.8 lb)
SE-CS40-6:
Current Ratio ...................... 800:1 A
Insulation ............................ 600-V Class
Window Diameter............... 160 mm (6.3”)
Shipping Weight ................. 1.8 kg (4.0 lb)
Certification.............................. CE(1), European Union
Compliance .............................. IEC 60044-1
RoHS Pending
NOTES:
(1)
When connected to an SE-135.
5.3 TERMINATION ASSEMBLIES
SE-TA12A:
Characteristic ...................... 12-V Zener, Temperature
Compensated
Circuit Type ........................ High-Current Shunt
Regulator
Reverse Voltage.................. 12 ±0.03 Vdc @ 100 mA
Forward Voltage ................. 0.5 ±0.1 Vdc @ 100 mA
Operating Temperature ....... -40 to 60°C (-40 to 140°F)
Current Range ..................... 2 mA to 25 A
Maximum Clamping
Voltage ............................... 55 V @ 250 A,
5x20 µs Pulse
Power Rating ...................... 50 W
Screw Terminal................... 6-32 x 0.25
Dimensions ......................... 105 x 40 x 41.5 mm
(4.13 x 1.57 x 1.63”)
Shipping Weight ................. 300 g (0.7 lb)
SE-TA12A-WL:
Characteristic ...................... 12-V Zener, Temperature
Compensated
Circuit Type ........................ High-Current Shunt
Regulator
Reverse Voltage.................. 12 ±0.03 Vdc @ 100 mA
Forward Voltage ................. 0.5 ±0.1 Vdc @ 100 mA
Operating Temperature ....... -40 to 60°C (-40 to 140°F)
Current Range ..................... 2 mA to 25 A
Maximum Clamping
Voltage ............................... 55 V @ 250 A,
5x20 µs Pulse
Power Rating ...................... 50 W
Wire Leads ......................... 14 AWG (2.08 mm2),
356 mm (14”)
Dimensions ......................... 105 x 40 x 22.2 mm
(4.13 x 1.57 x 0.87”)
Shipping Weight................. 300 g (0.7 lb)
SE-TA12ASF-WL:
Characteristic ...................... 12-V Zener, Temperature
Compensated
Circuit Type........................ High-Current Shunt Regulator
Reverse Voltage ................. 12 ±0.03 Vdc @ 100 mA
Forward Voltage................. 0.5 ±0.1 Vdc @ 100 mA
Operating Temperature....... -40 to 60°C (-40 to 140°F)
Current Range .................... 2 mA to 15 A
Maximum Clamping
Voltage ............................... 55 V @ 250 A, 5x20 µs Pulse
Power Rating ...................... 12 W
Wire Leads ......................... 18 AWG (0.82 mm2),
300 mm (11.8”)
Dimensions ......................... 58.8 x 19 x 12.7 mm
(2.32 x 0.75 x 0.5”)
Shipping Weight................. 45 g (0.1 lb)
Certification ............................. CSA Canada and USA
R
C
LR 53428
US
UL Listed
CE(1), European Union
NOTES:
(1)
When connected to an SE-135.
SE-135 Ground-Fault Ground-Check Monitor
6. ORDERING INFORMATION(1)
SE-135-
(1)
(2)
(3)
Network Communications:
0 None
3 Ethernet(2)
Power Supply:
0 Universal ac/dc Supply
1 24- to 48-Vdc Supply(2)(3)
Ground Check Options:
Blank Standard
XGC Extended-GC-Trip Resistance
All options include CE/C-Tick unless otherwise
stated. CE/C-Tick models include a ferrite kit.
CE/C-Tick not available.
Not available with Ethernet network communications
option.
Ground-Check Termination:
SE-TA12A .......................... 50-W Termination
Assembly with Screw
Terminals
SE-TA12A-WL .................. 50-W Termination
Assembly with Wire
Leads
SE-TA12ASF-WL .............. 12-W Small-Format
Termination Assembly
with Wire Leads
Current Sensors:
SE-CS10-2.5 ....................... Current Sensor,
63 mm (2.5”) window
SE-CS10-4 .......................... Current Sensor,
108 mm (4.2”) window
SE-CS10-6 .......................... Current Sensor,
160 mm (6.3”) window
SE-CS10-8 .......................... Current Sensor,
209 mm (8.2”) window
SE-CS40-6 .......................... Current Sensor,
160 mm (6.3”) window
Parallel Path Isolator
PPI-600V ............................ For system voltages up to
600 Vac
Page 18
Rev. 3-C-100314
Accessories:
RK-132 ............................... Remote Indication and
Reset, includes two 24120-V pilot lights, a reset
push button, and legend
plates
SE-IP65CVR-G .................. Hinged transparent cover,
IP65
SE-134-SMA ...................... Surface-Mount Adapter,
included with SE-135
SE-134-HDWR .................. Hardware Kit
(excludes ferrites and
SE-134-SMA),
included with SE-135
7. WARRANTY
The SE-135 Ground-Fault Ground-Check Monitor is
warranted to be free from defects in material and
workmanship for a period of five years from the date of
purchase.
Littelfuse Startco will (at Littelfuse Startco’s option)
repair, replace, or refund the original purchase price of an
SE-135 that is determined by Littelfuse Startco to be
defective if it is returned to the factory, freight prepaid,
within the warranty period. This warranty does not apply
to repairs required as a result of misuse, negligence, an
accident, improper installation, tampering, or insufficient
care. Littelfuse Startco does not warrant products
repaired or modified by non-Littelfuse Startco personnel.
SE-135 Ground-Fault Ground-Check Monitor
8. TEST PROCEDURES
8.1 GROUND-CHECK TRIP TESTS
8.1.1 LATCHING GROUND-CHECK TRIP TEST
Connect the monitor, current sensor and termination
assembly as shown in Fig 14. Connect terminals 14 and
15 for latching operation. With supply voltage applied,
the POWER, SENSOR, and VALID LED’s will be on.
Open the ground-check loop by removing either the
GC or G connection between the monitor and the
termination assembly (pressing the faceplate GC TEST
button will also perform an open-ground-check test). The
monitor will trip. The trip contacts (terminals 22-23 and
24-25) and the ground-check indication contacts
(terminals 26-27 and 26-28) will change state. The
VALID LED will be off, and both the GROUND
CHECK TRIP and the OPEN LED’s will be on.
Reconnect the ground-check loop. The VALID and
TRIP LED’s will be on and the OPEN LED will be
flashing. The TRIP contacts (terminals 22-23 and 24-25)
will remain latched and ground-check indication contacts
(terminals 26-27 and 26-28) will change state.
Reset the monitor.
Short the ground-check loop by connecting G to GC.
The monitor will trip. The trip contacts (terminals 22-23
and 24-25) and the ground-check indication contacts
(terminals 26-27 and 26-28) will change state. The
VALID LED will be off, and both the GROUND CHECK
TRIP and the SHORT LED’s will be on.
Remove the short from G to GC. The VALID and
TRIP LED’s will be on and the SHORT LED will be
flashing. The TRIP contacts (terminals 22-23 and 24-25)
will remain latched and ground-check indication contacts
(terminals 26-27 and 26-28) will change state.
Reset the monitor.
8.1.2 NON-LATCHING GROUND-CHECK TRIP TEST
Connect the monitor, current sensor and termination
device as shown in Fig. 14. With supply voltage applied,
the POWER, SENSOR, and VALID LED’s will be on.
Open the ground-check loop by removing either the
GC or G connection between the monitor and the
termination assembly (pressing the faceplate GC Test
button will also perform an open circuit test). The
monitor will trip. The trip contacts (terminals 22-23 and
24-25) and the ground-check indication contacts
(terminals 26-27 and 26-28) will change state. The
VALID LED will be off, and both the GROUND
CHECK TRIP and the OPEN LED’s will be on.
Reconnect the ground-check loop. The monitor will
reset.
Page 19
Rev. 3-C-100314
Short the ground-check loop by connecting G to GC.
The monitor will trip. The trip contacts (terminals 22-23
and 24-25) and the ground-check indication contacts
(terminals 26-27 and 26-28) will change state. The
VALID LED will be off, and both the GROUND
CHECK TRIP and the SHORT LED’s will be on.
Remove the short from G to GC. The monitor will reset.
8.2 TRIP RELAY FAIL-SAFE MODE TEST
Connect the monitor, current sensor and termination
device as shown in Fig. 14. With supply voltage applied,
the POWER, SENSOR, and VALID LED’s will be on.
The output contacts between terminals 22 and 23 will be
open and between 24 and 25 will be closed.
Remove the supply voltage. The output contacts
between terminals 22 and 23 will close and the output
contacts between terminals 24 and 25 will open.
8.3 CURRENT-SENSOR-VERIFICATION TEST
Connect the monitor, current sensor and termination
device as shown in Fig. 14. With supply voltage applied,
the POWER, SENSOR, and VALID LED’s will be on.
Open the current-sensor circuit by disconnecting one of
the sensor leads. The monitor will trip. The trip contacts
(terminals 22-23 and 24-25) and the ground-fault
indication contacts (terminals 19-20 and 19-21) will
change state. The GROUND FAULT TRIP LED will be
on and the SENSOR LED will be off.
Reconnect the current sensor. The GROUND FAULT
TRIP LED will stay on and the SENSOR LED will flash.
The output contacts will remain latched.
Reset the monitor.
Short the current sensor by connecting terminals 16
and 17. The monitor will trip. The trip contacts
(terminals 22-23 and 24-25) and the ground-fault
indication contacts (terminals 19-20 and 19-21) will
change state. The GROUND FAULT TRIP LED will be
on and the SENSOR LED will be off.
Remove the short from terminals 16 and 17. The
GROUND FAULT TRIP LED will stay on and the
SENSOR LED will flash. The output contacts will remain
latched.
Reset the monitor.
8.4 SE-TA12A-SERIES TERMINATION ASSEMBLY
TESTS
Apply 24 Vdc across the series combination of a
100-, 5-W current-limiting resistor and the termination
assembly, as shown in Fig. 15. In the reverse biased test,
the voltage should be 12 V across the termination
assembly terminals. In the forward biased test, the
voltage across the termination assembly terminals should
be between 0.3 and 0.9 V.
Page 20
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
8.5 GROUND-FAULT PERFORMANCE TEST
To meet the requirements of the National Electrical
Code (NEC), as applicable, the overall ground-fault
protection system requires a performance test when first
installed. A written record of the performance test is to
be retained by those in charge of the electrical installation
in order to make it available to the authority having
jurisdiction. A test-record form is provided for recording
the date and the final results of the performance tests.
The following ground-fault system tests are to be
conducted by qualified personnel:
a) Evaluate the interconnected system in accordance
with the overall equipment manufacturer’s detailed
instructions.
b) Verify proper location of the ground-fault current
sensor. Ensure the cables pass through the groundfault-current-sensor window. This check can be done
visually with knowledge of the circuit.
The
connection of the current-sensor secondary to the SE135 is not polarity sensitive.
c) Verify that the system is correctly grounded and that
alternate ground paths do not exist that bypass the
current sensor. High-voltage testers and resistance
bridges can be used to determine the existence of
alternate ground paths.
d) Verify proper reaction of the circuit-interrupting
device in response to a simulated or controlled
ground-fault current.
To simulate ground-fault
current, use CT-primary current injection. Fig. 14
shows a test circuit using Littelfuse Startco GroundFault-Relay Test Units.
The SE-400 has a
programmable output of 0.5 to 9.9 A for a duration of
0.1 to 9.9 seconds. Set the test current to 120% of GF
TRIP LEVEL. The SE-100T provides a test current
of 0.65 or 2.75 A for testing 0.5- and 2.0-A trip levels.
Inject the test current through the current-sensor
window for at least 2.5 seconds. Verify that the
circuit under test has reacted properly. Correct any
problems and re-test until the proper reaction is
verified.
e) Record the date and the results of the test on the
attached test-record form.
TABLE 3. GROUND-FAULT-TEST RECORD
DATE
TEST RESULTS
Retain this record for the authority having jurisdiction.
Page 21
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
NOTES:
1. MOMENTARILY CONNECT 9 & 10 TO PERFORM
REMOTE RESET.
2. MOMENTARILY CONNECT 11 & 12 TO PERFORM
REMOTE GROUND-CHECK TEST.
3. CONNECT 12 & 13 FOR NON-FAIL SAFE
OPERATION OF THE TRIP RELAY.
NOTE 6
24
TRIP A
25
22
TRIP B
23
19
GF
20
GF
21
26
GC
27
GC
28
4. CONNECT 14 & 15 FOR LATCHING
GROUND-CHECK TRIP.
OHMS
5. CONNECT 17 & 18 TO DISABLE CURRENTSENSOR VERIFICATION.
6. CONTACTS SHOWN DE-ENERGIZED.
SUPPLY
VOLTAGE
L
1
N
2
L1
SE-CS10
CURRENT
SENSOR
16
L2/N
CURRENT
SENSOR
RESET
DISABLE
18
SENSOR
VERIFICATION
17
9
NOTE 1
10
11
NOTE 2
12
NOTE 5
SUPPLY
VOLTAGE
GC
TEST
L
N
OUTPUT
NOTE 3
13
14
NOTE 4
15
3
4
NFS
GROUND-FAULT RELAY
TEST UNIT
GROUNDCHECK
LATCH
GROUND
CHECK
SPG
5
6
(SE-100T or SE-400)
GC
G
7
CABLE
GROUND
8
SE-TA12A-SERIES
TERMINATION
ASSEMBLY
SE-135
FIGURE 14. Ground-Fault-Test Circuit.
100 Ω 5 W
100 Ω 5 W
+
24 Vdc
-
24 Vdc
-
+
GC
GC
G
G
SE-TA12A-SERIES
TERMINATION
ASSEMBLY
SE-TA12A-SERIES
TERMINATION
ASSEMBLY
VOLTS
REVERSE-BIASED TEST
FIGURE 15. Termination-Assembly-Test Circuits.
VOLTS
FORWARD-BIASED TEST
Page 22
Rev. 3-C-100314
SE-135 Ground-Fault Ground-Check Monitor
MANUAL
RELEASE DATE
APPENDIX A
SE-135 REVISION HISTORY
MANUAL
PRODUCT REVISION
REVISION
(REVISION NUMBER ON PRODUCT LABEL)
October 3, 2014
3-C-100314
November 12, 2013
3-B-111213
May 14, 2013
3-A-050613
04D
MANUAL REVISION HISTORY
REVISION 3-C-100314
SECTION 4
Figs. 7, 8, and 11 updated.
APPENDIX A
Revision history updated.
REVISION 3-B-111213
SECTION 2
Maximum trailing cable length added.
SECTION 5
Additional termination assembly and compliance specifications added.
APPENDIX A
Revision history updated.
REVISION 3-A-050613
SECTION 2
Network communications added.
SECTION 4
Ferrite placement instructions added.
SECTION 5
CE specifications, XGC option, SE-CS40-6 specifications and dimensions added.
SECTION 6
Ordering information updated.
APPENDIX A
Revision history added.
PRODUCT REVISION HISTORY
REVISION 04D
Ferrite kit added.